diff --git a/docs/evm/chains/crab.md b/docs/evm/chains/crab.md
index e7fa452..eadae10 100644
--- a/docs/evm/chains/crab.md
+++ b/docs/evm/chains/crab.md
@@ -2,6 +2,10 @@ Crab is a canary chain with real economic value for Darwinia chain, and its posi
 
 Crab is now a [parachain of Kusama](https://kusama.subscan.io/parachain/2229).
 
+## Connect Wallet
+
+[Connect automatically](https://chainlist.org/chain/44){ .md-button .md-button--primary }
+
 ## Network Info
 
 - Network Name: Crab
diff --git a/docs/evm/chains/darwinia.md b/docs/evm/chains/darwinia.md
index beaf5f1..af97f95 100644
--- a/docs/evm/chains/darwinia.md
+++ b/docs/evm/chains/darwinia.md
@@ -4,6 +4,10 @@ Darwinia chain is an EVM-compatible blockchain based on [Substrate](https://subs
 
 Darwinia is now a [parachain of Polkadot](https://polkadot.subscan.io/parachain/2046).
 
+## Connect Wallet
+
+[Connect automatically](https://chainlist.org/chain/46){ .md-button .md-button--primary }
+
 ## Network Info
 
 - Network Name: Darwinia2
diff --git a/docs/evm/chains/pangolin.md b/docs/evm/chains/pangolin.md
index 2c6efc7..9e5abdb 100644
--- a/docs/evm/chains/pangolin.md
+++ b/docs/evm/chains/pangolin.md
@@ -2,6 +2,9 @@
 
 The Pangolin acts as the primary test network for all Darwinia chains, officially maintained to ensure that new and innovative features are thoroughly tested before they are deployed to the main production network.
 
+## Connect Wallet
+
+[Connect automatically](https://chainlist.org/chain/43){ .md-button .md-button--primary }
 
 ## Faucet